Résumé: Spatial modulation (SM) is a recent Multiple-Input
Multiple-Output (MIMO) transmission technique in which part
of the information is transmitted by the index indicating an active
antenna. The other part of the information is transmitted by
sending a symbol from a digital modulation through this antenna.
An advantage of SM over other MIMO techniques is that a single
RF chain is required. However, since in traditional SM the active
antenna selection is made at the symbol rate, the duration of the
transmission pulse is limited, resulting in a bandwidth efficiency
reduction, a fact that is normally neglected in the literature.
Aiming at mitigating this problem, Ishibashi and Sugiura have
recently proposed a technique that makes use of additional
RF chains, where the symbols are transmitted alternately by
the RF chains. They performed a spectral efficiency analysis
assuming a raised-cosine pulse. In this paper, other shaping
pulses better localized both in time and frequency, such as the
prolate spheroidal wave function (PSWF) or Gaussian pulses, are
proposed, aiming at improving the system’s spectral efficiency.
Simulation results reveal that with the proposed pulses we can
significantly improve the SM spectral efficiency as compared to
other pulses considered in the literature.

Collaboration: USC
,
lcs

BibTeX

@inproceedings {

DUl17,

title

=

"{Study of the Impact of Pulse Shaping on the Performance of Spatial Modulation}",